.practice {
  width: 100%;
  min-height: 100vh;
  overflow: hidden;
  padding-bottom: 56px;
}
.practice .top {
  padding: 0 50px;
  box-sizing: border-box;
  height: 180px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid #ccc;
}
.practice .top .MuiSvgIcon-root {
  width: 50px;
  height: 50px;
  margin-right: 14px;
}
.practice .top b {
  font-weight: bold;
  color: #2e57ff;
}
.practice .subject {
  position: relative;
  left: 0;
  top: 0;
  transition: left 0.5s linear;
}
.practice .subject .subject_li {
  float: left;
  width: 100vw;
  padding: 0 50px;
  box-sizing: border-box;
  border-bottom: 0;
}
.practice .top_title {
  display: flex;
  justify-content: space-between;
  margin-bottom: 70px;
  padding: 60px 0 0;
}
.practice .top_title span {
  width: 80px;
  height: 50px;
  background: #2e57ff;
  font-size: 32px;
  color: #fff;
  text-align: center;
  line-height: 50px;
  margin-right: 20px;
}
.practice .top_title p {
  flex: 1;
  font-size: 42px;
  color: #333;
  line-height: 56px;
}
.practice .subject_textarea {
  display: block;
  width: 100%;
  height: 600px;
  background: #f0f0f0;
  padding: 68px 71px;
  margin-bottom: 39px;
  box-sizing: border-box;
}
.practice .subject_textarea::-webkit-input-placeholder {
  font-size: 38px;
  color: #999;
}
.practice .danxuan_options li {
  width: 1025px;
  background: #f0f0f0;
  padding: 50px;
  box-sizing: border-box;
  display: flex;
  justify-content: space-between;
  margin-bottom: 40px;
}
.practice .danxuan_options .iconfont {
  padding-top: 10px;
}
.practice .danxuan_options .iconfont.icon-danxuanxiangxuanzhong {
  color: #2e57ff;
}
.practice .danxuan_options .iconfont.icon-danxuanxiangweixuanzhong {
  color: #333;
}
.practice .danxuan_options span {
  flex: 1;
  margin-left: 36px;
}
.practice .subject_tips {
  color: #999;
  font-size: 30px;
  margin-bottom: 60px;
}
.practice .subject_submit {
  width: 250px;
  height: 96px;
  background: #fff;
  color: #2e57ff;
  border: 2px solid #2e57ff;
  border-radius: 8px;
  font-size: 40px;
  text-align: center;
  line-height: 96px;
  margin-bottom: 69px;
}
.practice .subject_answer {
  display: flex;
  justify-content: space-between;
  margin-bottom: 69px;
}
.practice .subject_answer span {
  width: 14%;
  font-size: 42px;
  color: #333;
  margin-right: 40px;
}
.practice .subject_answer p {
  flex: 1;
  color: #2e57ff;
  line-height: 50px;
}
.practice .subject_analyze p {
  color: #333;
}
